From nobody Mon Feb 9 07:23:54 2026 Received: from mail-m49253.qiye.163.com (mail-m49253.qiye.163.com [45.254.49.253]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65E2B147C78; Wed, 3 Apr 2024 13:57:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.254.49.253 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712152638; cv=none; b=oRjSUejf9g9PDn12CwC7SMHLz92s6yAps/cQ2HNmyVqFuw774DyOeZXsbyiFCNgGOXcJlQaGSyrbwlO7SIIBVYh4mwUewhUPrDtIINfQHQeJTytpYLzQSYAlYKw4PDqPgtzXS6JOl+hzdwgX9rLm0dToricFUyVvOvtf2N8TtsU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712152638; c=relaxed/simple; bh=Yi2rfy/c/FEfpMRtlXRZ23HDICk1lcPrg8Fy+0GTG60=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=VW9GNYaaB4R3EPQO8S0zPtg1XFfec1mN3MTSOYjnCs0uM0et6XrO6AK7qf/mEwmOMKFh4WH3ZtjxTyj9Ys1/li0PYSvN41lYZwhQFVFHlYBOQhV6EedZkXYjFQ3118XS6c2ShPdlDJMtmHMA3yHcUtmOEUrm85SLgh51c81GQZ8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rock-chips.com; spf=pass smtp.mailfrom=rock-chips.com; dkim=pass (1024-bit key) header.d=rock-chips.com header.i=@rock-chips.com header.b=WL9AME1F; arc=none smtp.client-ip=45.254.49.253 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rock-chips.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rock-chips.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=rock-chips.com header.i=@rock-chips.com header.b="WL9AME1F" DKIM-Signature: a=rsa-sha256; b=WL9AME1FbN3qwG5Wk/f79Xhi/AskTVfgq4tjVjSPsooez9x8BryWqJeBNcj8nT7Cip+10fOlPiHqsHn8OL6mSsNN5q36mI+y2RXFwcfUM3ELmMp1gzB+DCuJ32O/rK9vlsmI9opkB5wX7NvQcY5vCQd4rypsKVxDSSE7JkQ2MLE=; c=relaxed/relaxed; s=default; d=rock-chips.com; v=1; bh=hVhk+TI4SRZhbF4gUP3nkD3PWMY3UDprkFnGH1+J064=; h=date:mime-version:subject:message-id:from; Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.qiye.163.com (Hmail) with ESMTPA id C6D807C03A7; Wed, 3 Apr 2024 21:18:44 +0800 (CST) From: Sugar Zhang To: heiko@sntech.de, vkoul@kernel.org Cc: linux-rockchip@lists.infradead.org, Sugar Zhang , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] dmaengine: Add support for audio interleaved transfer Date: Wed, 3 Apr 2024 21:18:22 +0800 Message-Id: <20240403211810.v2.1.I502ea9c86c8403dc5b1f38abf40be8b6ee13c1dc@changeid> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1712150304-60832-1-git-send-email-sugar.zhang@rock-chips.com> References: <1712150304-60832-1-git-send-email-sugar.zhang@rock-chips.com> X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFDSUNOT01LS0k3V1ktWUFJV1kPCRoVCBIfWUFZQ09IT1ZNHx0aTU8YHksfSh5VEwETFh oSFyQUDg9ZV1kYEgtZQVlOQ1VJSVVMVUpKT1lXWRYaDxIVHRRZQVlPS0hVSk1PSUxOVUpLS1VKQk tLWQY+ X-HM-Tid: 0a8ea41ca76e09d2kunmc6d807c03a7 X-HM-MType: 1 X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6NjY6CDo*DTMTATUZNTFJHhdD LCoKCR1VSlVKTEpJSk5LSElOT09OVTMWGhIXVQgOHBoJVQETGhUcOwkUGBBWGBMSCwhVGBQWRVlX WRILWUFZTkNVSUlVTFVKSk9ZV1kIAVlBSENJTDcG Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This patch add support for interleaved transfer which used for interleaved audio or 2d video data transfer. for audio situation, we add 'nump' for number of period frames. e.g. combine 2 stream into a union one by 2D dma. DAI0: 16CH +-------------------------------------------------------------+ | Frame-1 | Frame-2 | Frame-3 | Frame-4 | ...... Frame-'numf' | +-------------------------------------------------------------+ DAI1: 16CH +-------------------------------------------------------------+ | Frame-1 | Frame-2 | Frame-3 | Frame-4 | ...... Frame-'numf' | +-------------------------------------------------------------+ DAI0 + DAI1: 32CH +-------------------------------------------------------------+ | DAI0-F1 | DAI1-F1 | DAI0-F2 | DAI1-F2 | ...... | +-------------------------------------------------------------+ | Frame-1 | Frame-2 | ...... Frame-'numf' | For audio situation, we have buffer_size and period_size, the 'numf' is the buffer_size. so, we need another one for period_size, e.g. 'nump'. | Frame-1 | ~ | Frame-'nump' | ~ | Frame-'nump+1' | ~ | Frame-'numf' | | As the above shown: each DAI0 transfer 1 Frame, should skip a gap size (DAI1-F1) each DAI1 transfer 1 Frame, should skip a gap size (DAI0-F1) So, the interleaved template describe as follows: DAI0: struct dma_interleaved_template *xt; xt->sgl[0].size =3D DAI0-F1; xt->sgl[0].icg =3D DAI1-F1; xt->nump =3D nump; //the period_size in frames xt->numf =3D numf; //the buffer_size in frames DAI1: struct dma_interleaved_template *xt; xt->sgl[0].size =3D DAI1-F1; xt->sgl[0].icg =3D DAI0-F1; xt->nump =3D nump; //the period_size in frames xt->numf =3D numf; //the buffer_size in frames Signed-off-by: Sugar Zhang --- Changes in v2: - Add the pl330 interleaved transfer include/linux/dmaengine.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 752dbde..5263cde 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -144,6 +144,7 @@ struct data_chunk { * Otherwise, destination is filled contiguously (icg ignored). * Ignored if dst_inc is false. * @numf: Number of frames in this template. + * @nump: Number of period frames in this template. * @frame_size: Number of chunks in a frame i.e, size of sgl[]. * @sgl: Array of {chunk,icg} pairs that make up a frame. */ @@ -156,6 +157,7 @@ struct dma_interleaved_template { bool src_sgl; 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Wed, 3 Apr 2024 21:18:49 +0800 (CST) From: Sugar Zhang To: heiko@sntech.de, vkoul@kernel.org Cc: linux-rockchip@lists.infradead.org, Sugar Zhang , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2] dmaengine: pl330: Add support for audio interleaved transfer Date: Wed, 3 Apr 2024 21:18:23 +0800 Message-Id: <20240403211810.v2.2.I27a3219694d4d2a43fcfb35e1b069340dc94a5f0@changeid> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1712150304-60832-1-git-send-email-sugar.zhang@rock-chips.com> References: <1712150304-60832-1-git-send-email-sugar.zhang@rock-chips.com> X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFDSUNOT01LS0k3V1ktWUFJV1kPCRoVCBIfWUFZGklPSVZPS0keQ09LT0tKTU9VEwETFh oSFyQUDg9ZV1kYEgtZQVlOQ1VJSVVMVUpKT1lXWRYaDxIVHRRZQVlPS0hVSk5DTUtIVUpLS1VKQl kG X-HM-Tid: 0a8ea41cb89409d2kunm321a47c034a X-HM-MType: 1 X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6Mio6ECo6ITMKATVKTDc*HhUK CwpPFDBVSlVKTEpJSk5LSElCQkNJVTMWGhIXVQgOHBoJVQETGhUcOwkUGBBWGBMSCwhVGBQWRVlX WRILWUFZTkNVSUlVTFVKSk9ZV1kIAVlBSktOTkM3Bg++ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This patch add support for interleaved transfer which used for interleaved audio or 2d video data transfer. for audio situation, we add 'nump' for number of period frames. e.g. combine 2 stream into a union one by 2D dma. DAI0: 16CH +-------------------------------------------------------------+ | Frame-1 | Frame-2 | Frame-3 | Frame-4 | ...... Frame-'numf' | +-------------------------------------------------------------+ DAI1: 16CH +-------------------------------------------------------------+ | Frame-1 | Frame-2 | Frame-3 | Frame-4 | ...... Frame-'numf' | +-------------------------------------------------------------+ DAI0 + DAI1: 32CH +-------------------------------------------------------------+ | DAI0-F1 | DAI1-F1 | DAI0-F2 | DAI1-F2 | ...... | +-------------------------------------------------------------+ | Frame-1 | Frame-2 | ...... Frame-'numf' | For audio situation, we have buffer_size and period_size, the 'numf' is the buffer_size. so, we need another one for period_size, e.g. 'nump'. | Frame-1 | ~ | Frame-'nump' | ~ | Frame-'nump+1' | ~ | Frame-'numf' | | As the above shown: each DAI0 transfer 1 Frame, should skip a gap size (DAI1-F1) each DAI1 transfer 1 Frame, should skip a gap size (DAI0-F1) So, the interleaved template describe as follows: DAI0: struct dma_interleaved_template *xt; xt->sgl[0].size =3D DAI0-F1; xt->sgl[0].icg =3D DAI1-F1; xt->nump =3D nump; //the period_size in frames xt->numf =3D numf; //the buffer_size in frames DAI1: struct dma_interleaved_template *xt; xt->sgl[0].size =3D DAI1-F1; xt->sgl[0].icg =3D DAI0-F1; xt->nump =3D nump; //the period_size in frames xt->numf =3D numf; //the buffer_size in frames Signed-off-by: Sugar Zhang --- (no changes since v1) drivers/dma/pl330.c | 169 ++++++++++++++++++++++++++++++++++++++++++++++++= ++-- 1 file changed, 163 insertions(+), 6 deletions(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 5f6d7f1..449ed6b 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -239,6 +239,7 @@ enum pl330_byteswap { =20 #define BYTE_TO_BURST(b, ccr) ((b) / BRST_SIZE(ccr) / BRST_LEN(ccr)) #define BURST_TO_BYTE(c, ccr) ((c) * BRST_SIZE(ccr) * BRST_LEN(ccr)) +#define BYTE_MOD_BURST_LEN(b, ccr) (((b) / BRST_SIZE(ccr)) % BRST_LEN(ccr)) =20 /* * With 256 bytes, we can do more than 2.5MB and 5MB xfers per req @@ -545,6 +546,8 @@ struct dma_pl330_desc { unsigned peri:5; /* Hook to attach to DMAC's list of reqs with due callback */ struct list_head rqd; + /* interleaved size */ + struct data_chunk sgl; }; =20 struct _xfer_spec { @@ -577,6 +580,22 @@ static inline u32 get_revision(u32 periph_id) return (periph_id >> PERIPH_REV_SHIFT) & PERIPH_REV_MASK; } =20 +static inline u32 _emit_ADDH(unsigned dry_run, u8 buf[], + enum pl330_dst da, u16 val) +{ + if (dry_run) + return SZ_DMAADDH; + + buf[0] =3D CMD_DMAADDH; + buf[0] |=3D (da << 1); + *((__le16 *)&buf[1]) =3D cpu_to_le16(val); + + PL330_DBGCMD_DUMP(SZ_DMAADDH, "\tDMAADDH %s %u\n", + da =3D=3D 1 ? "DA" : "SA", val); + + return SZ_DMAADDH; +} + static inline u32 _emit_END(unsigned dry_run, u8 buf[]) { if (dry_run) @@ -1190,7 +1209,7 @@ static inline int _ldst_peripheral(struct pl330_dmac = *pl330, const struct _xfer_spec *pxs, int cyc, enum pl330_cond cond) { - int off =3D 0; + int off =3D 0, i =3D 0, burstn =3D 1; =20 /* * do FLUSHP at beginning to clear any stale dma requests before the @@ -1198,12 +1217,36 @@ static inline int _ldst_peripheral(struct pl330_dma= c *pl330, */ if (!(pl330->quirks & PL330_QUIRK_BROKEN_NO_FLUSHP)) off +=3D _emit_FLUSHP(dry_run, &buf[off], pxs->desc->peri); + + if (pxs->desc->sgl.size) { + WARN_ON(BYTE_MOD_BURST_LEN(pxs->desc->sgl.size, pxs->ccr)); + burstn =3D BYTE_TO_BURST(pxs->desc->sgl.size, pxs->ccr); + } + while (cyc--) { - off +=3D _emit_WFP(dry_run, &buf[off], cond, pxs->desc->peri); - off +=3D _emit_load(dry_run, &buf[off], cond, pxs->desc->rqtype, - pxs->desc->peri); - off +=3D _emit_store(dry_run, &buf[off], cond, pxs->desc->rqtype, - pxs->desc->peri); + for (i =3D 0; i < burstn; i++) { + off +=3D _emit_WFP(dry_run, &buf[off], cond, pxs->desc->peri); + off +=3D _emit_load(dry_run, &buf[off], cond, pxs->desc->rqtype, + pxs->desc->peri); + off +=3D _emit_store(dry_run, &buf[off], cond, pxs->desc->rqtype, + pxs->desc->peri); + } + + switch (pxs->desc->rqtype) { + case DMA_DEV_TO_MEM: + if (pxs->desc->sgl.dst_icg) + off +=3D _emit_ADDH(dry_run, &buf[off], DST, + pxs->desc->sgl.dst_icg); + break; + case DMA_MEM_TO_DEV: + if (pxs->desc->sgl.src_icg) + off +=3D _emit_ADDH(dry_run, &buf[off], SRC, + pxs->desc->sgl.src_icg); + break; + default: + WARN_ON(1); + break; + } } =20 return off; @@ -1382,6 +1425,9 @@ static inline int _setup_loops(struct pl330_dmac *pl3= 30, BRST_SIZE(ccr); int off =3D 0; =20 + if (pxs->desc->sgl.size) + bursts =3D x->bytes / pxs->desc->sgl.size; + while (bursts) { c =3D bursts; off +=3D _loop(pl330, dry_run, &buf[off], &c, pxs); @@ -2624,6 +2670,9 @@ static struct dma_pl330_desc *pl330_get_desc(struct d= ma_pl330_chan *pch) =20 desc->peri =3D peri_id ? pch->chan.chan_id : 0; desc->rqcfg.pcfg =3D &pch->dmac->pcfg; + desc->sgl.size =3D 0; + desc->sgl.src_icg =3D 0; + desc->sgl.dst_icg =3D 0; =20 dma_async_tx_descriptor_init(&desc->txd, &pch->chan); =20 @@ -2774,6 +2823,110 @@ static struct dma_async_tx_descriptor *pl330_prep_d= ma_cyclic( return &desc->txd; } =20 +static struct dma_async_tx_descriptor *pl330_prep_interleaved_dma( + struct dma_chan *chan, struct dma_interleaved_template *xt, + unsigned long flags) +{ + struct dma_pl330_desc *desc =3D NULL, *first =3D NULL; + struct dma_pl330_chan *pch =3D to_pchan(chan); + struct pl330_dmac *pl330 =3D pch->dmac; + unsigned int i; + dma_addr_t dst; + dma_addr_t src; + size_t size, src_icg, dst_icg, period_bytes, buffer_bytes, full_period_by= tes; + size_t nump =3D 0, numf =3D 0; + + if (!xt->numf || !xt->sgl[0].size || xt->frame_size !=3D 1) + return NULL; + nump =3D xt->nump; + numf =3D xt->numf; + size =3D xt->sgl[0].size; + period_bytes =3D size * nump; + buffer_bytes =3D size * numf; + + if (flags & DMA_PREP_REPEAT && (!nump || (numf % nump))) + return NULL; + + src_icg =3D dmaengine_get_src_icg(xt, &xt->sgl[0]); + dst_icg =3D dmaengine_get_dst_icg(xt, &xt->sgl[0]); + + pl330_config_write(chan, &pch->slave_config, xt->dir); + + if (!pl330_prep_slave_fifo(pch, xt->dir)) + return NULL; + + for (i =3D 0; i < numf / nump; i++) { + desc =3D pl330_get_desc(pch); + if (!desc) { + unsigned long iflags; + + dev_err(pch->dmac->ddma.dev, "%s:%d Unable to fetch desc\n", + __func__, __LINE__); + + if (!first) + return NULL; + + spin_lock_irqsave(&pl330->pool_lock, iflags); + + while (!list_empty(&first->node)) { + desc =3D list_entry(first->node.next, + struct dma_pl330_desc, node); + list_move_tail(&desc->node, &pl330->desc_pool); + } + + list_move_tail(&first->node, &pl330->desc_pool); + + spin_unlock_irqrestore(&pl330->pool_lock, iflags); + + return NULL; + } + + switch (xt->dir) { + case DMA_MEM_TO_DEV: + desc->rqcfg.src_inc =3D 1; + desc->rqcfg.dst_inc =3D 0; + src =3D xt->src_start + period_bytes * i; + dst =3D pch->fifo_dma; + full_period_bytes =3D (size + src_icg) * nump; + break; + case DMA_DEV_TO_MEM: + desc->rqcfg.src_inc =3D 0; + desc->rqcfg.dst_inc =3D 1; + src =3D pch->fifo_dma; + dst =3D xt->dst_start + period_bytes * i; + full_period_bytes =3D (size + dst_icg) * nump; + break; + default: + break; + } + + desc->rqtype =3D xt->dir; + desc->rqcfg.brst_size =3D pch->burst_sz; + desc->rqcfg.brst_len =3D pch->burst_len; + desc->bytes_requested =3D full_period_bytes; + desc->sgl.size =3D size; + desc->sgl.src_icg =3D src_icg; + desc->sgl.dst_icg =3D dst_icg; + fill_px(&desc->px, dst, src, period_bytes); + + if (!first) + first =3D desc; + else + list_add_tail(&desc->node, &first->node); + } + + if (!desc) + return NULL; + + if (flags & DMA_PREP_REPEAT) + pch->cyclic =3D true; + + dev_dbg(chan->device->dev, "size: %zu, src_icg: %zu, dst_icg: %zu, nump: = %zu, numf: %zu\n", + size, src_icg, dst_icg, nump, numf); + + return &desc->txd; +} + static struct dma_async_tx_descriptor * pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst, dma_addr_t src, size_t len, unsigned long flags) @@ -3129,12 +3282,16 @@ pl330_probe(struct amba_device *adev, const struct = amba_id *id) dma_cap_set(DMA_SLAVE, pd->cap_mask); dma_cap_set(DMA_CYCLIC, pd->cap_mask); dma_cap_set(DMA_PRIVATE, pd->cap_mask); + dma_cap_set(DMA_INTERLEAVE, pd->cap_mask); + dma_cap_set(DMA_REPEAT, pd->cap_mask); + dma_cap_set(DMA_LOAD_EOT, pd->cap_mask); } =20 pd->device_alloc_chan_resources =3D pl330_alloc_chan_resources; pd->device_free_chan_resources =3D pl330_free_chan_resources; pd->device_prep_dma_memcpy =3D pl330_prep_dma_memcpy; pd->device_prep_dma_cyclic =3D pl330_prep_dma_cyclic; + pd->device_prep_interleaved_dma =3D pl330_prep_interleaved_dma; pd->device_tx_status =3D pl330_tx_status; pd->device_prep_slave_sg =3D pl330_prep_slave_sg; pd->device_config =3D pl330_config; --=20 2.7.4